Smimou, K.; Bector, C.R.; Jacoby, G. - In: International Review of Financial Analysis 17 (2008) 5, pp. 1036-1054
Since Markowitz [Markowitz, H. M. (1952). Portfolio selection. The Journal of Finance, 7, 77-91.], mean-variance theory has assumed that risky-asset returns to be random variables. The theory deals with this uncertainty by further assuming that investors hold homogeneous beliefs regarding the...